Find slope of (4, 8) and (-5, 8)

0/-9

Step-by-step explanation:

the equation is m= y2-y1/x2-x1. the coordinates are set up as (x,y), so the first set of coordinates are (x1, y1) and the second set is (x2-y2). so, you plug in the numbers to solve for slope. 8-8/ -5-4, which equals 0/-9. this means, your slope is a straight line.

Step-by-step explanation:

first put your ys on top and your xs on bottom then solve for the slope for example

8-8

4-(-5)

after you solve you should get  0

                                                    9

that should be your slope so now your slope is 0

i believe that the answer is

b. y-1=-2(x-4)

hope this !

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours